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Q28 (CISF/2020) Science & Technology › Basic Science (Physics, Chemistry, Biology)

How many moles of water would be produced by the complete combustion of one mole of natural gas, CH4, in excess of oxygen ?

Result
Your answer: —  ·  Correct: B

Explanation

The complete combustion of methane (CH4), which is the primary component of natural gas, is represented by the following balanced chemical equation:

CH4 + 2O2 → CO2 + 2H2O

According to the stoichiometry of this reaction, 1 mole of methane reacts with 2 moles of oxygen (O2) to yield 1 mole of carbon dioxide (CO2) and 2 moles of water (H2O). Therefore, the complete combustion of one mole of natural gas produces exactly 2 moles of water.

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